SERVICE MANUAL
Contents
1. Check if the capillary ia Replace the isblocked capillary There is some mixed inside Evacuate the refrigerant the refrigerant system system and recharge gas 9 2 5 E5 E6 Open or short circuit of temperature sensor diagnosis and solution Check the connections between the sensors and the PCB Are the connections good Replace the sensor and check if the YES h gt Replace outdoor PCB errors happen again 372. Pressing the touch button once the machine will transfer into forced auto mode if pressing the button once again the machine will turn into forced cooling mode the third pressing will stop the unit and the forth pressing is the start of the cycle of forced auto mode forced cooling mode and stop Refer the following chart 29 First press Press once Press once Forced auto Forced cooling 5 Press once 8 4 6 2 In forced operation mode all general protections and remote control are valid 8 4 6 3 Operation rules Forced cooling mode The indoor fan will work in low speed compressor and outdoor fan open unconditionally after 30min the unit will transfer into dehumidify mode All the protections are valid during forced cooling mode Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 setting temperature 8 4 7 Timer function 8 4 7 1 Timing range is 24 hours and the minimum resolution is 15 minutes 8 4 7 2 Timer on After turning off the machine will turn on automatically when reaching the setting time 8 4 7 3 Timer off After turning on the machine will turn off automatically when reaching the setting time 8 4 7 4 Timer on off After turning off the machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setting off time 8 4 7 5 Timer off on After turning on the machin
3. approximately 5 minutes after turning off the vacuum pump 19 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil if the vacuum pump oil becomes dirty or depleted replenish as needle 6 9 Gas charging Outdoor unit Indoor unit Y TZAN Liquid side E AN Us L i TON Gas side X Y CARY MV Check valve Charging cylinder Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant if can be charged with a little at a time approximately 150g each timeO while operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the 3 way valve s service port Stopping partway will allow the refrigerant to be discharged 20 If the system has been char
4. 3 to 0 5Mpa Disconnect the charge set and amount the 2 way and 3 way valve s stem nuts and service port caps Use a torque wrench to tighten the service port cap Be sure to check for gas leakage 6 6 Re air purging Re installation EST Outdoor unit 2 way valve Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut to on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Balance refrigerant of the 2 way 3 way valves Ind
5. Compressor off a Outdoor fan off Compressor and outdoorfan on TE TEST TE9 C While TE7 60 C TE8 53 C TE9 50 C for 7k model 8 4 4 Auto mode This mode can be chosen by remote controller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling or fan only mode according to the difference between T1 and Ts 28 T1 Ts Running mode T1 Ts gt 2 C Cooling T1 Ts lt 1 C Fan only AC will run in auto mode in the below cases 1 Press the forced auto button 2 If AC is off It will run in auto mode when timer on function is active 3 After setting the mode AC will run in auto mode if the compressor keeps not running for 15 minutes 8 4 5 Dehumidify mode 8 4 5 1 Indoor fan speed is depended on compressor compressor starts indoor fan in low speed compressor stops indoor fan in breeze speed 8 4 5 2 The action of outdoor fan and compressor are the same is according to the room temperature and set temperature Compressor and outdoor fan actions Indoor fan actions T12TS 2 Alternated action T1 lt TS Alternated action 8 4 5 3 If the room temperature decreased to lower than 10 C the compressor and outdoor fan will 2 TS lt T1 lt TS 2 Alternated action stop indoor fan in breeze speed If the room temperature raised to higher than 13 C recover the dehumidify mode 8 4 6 Forced operation function 8 4 6 1 Enter forced operation function
6. 9VSEU 1105 A Midea S S amp SKLIMA Strategic Products and Services SERVICE MANUAL MIDEA AIRCONDITIONER EUROPE MARKET SPLIT WALL MOUNTED TYPE 9V ON OFF SERIES CC CONTENTS T Precautloh erectio erfarer etsende 1 1 1 Safety Precaution eine eto eerta e tes 1 AZ WARMING Mc 1 LT ae Ko ge ems 6 J DIMENSION Ee 9 SPP Le 0 0 og gio MEE ET EE REE 9 3 2 Outdoor Un iii eg ease drar drektig 10 4 Refrigerant Cycle Diagram rrrnavnnnnnnnnnvnnnnnnvnnnnnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnn 11 5 Wiring Diagram ii ind eenen 12 Dal INGOOR UN zaten e od e Ud 12 Aerea ec TUE 13 Installation details ver ora aaraa Tadaa daea aaas 14 6 1 Wrench torque sheet for installation enne 14 6 2 Connecting the cables deti etie Pise aluo ptt iai bred peur pua ton 14 6 3 Pipe length and the elevation nennen neee neee nee mmm mm ennnnnnnnnnrn nnns 14 6 4 Air purging with vacuum pump nennen nnee enne erve enee enne enne verevenen vene enne nnn n nnn nnns nnns nnns nnns nnns 15 6 5 Pumping down Re installation nnen enne nnenenee nen eenennneneer enen eenn neneneereenenennennennen enen en 16 6 6 Re air purging Re installation nnen onnennenenee ven eenennnenver enen eeneneneneer eene nennennnnnen eenen 17 6 7 Balance refrigerant of the 2 way 3 way valves nnn onnnnnneneeneneneennnneneeneneevennennennenrene eenn 18 6 9 EVACUAHON ETE 19 6 9 Ga
7. Indoor unit Liquid side Outdoor unit TDN ES Two way valve Imm 7 Close EE ed I n Gas side E NEZ p Three way valve Manifold valve m Close Compound meter M TE m En Pressure y w y Heee Dm df Mur gauge q Lo Hi b AE N Herl al TT Handle Lo B U handle Hi Charge ss Charge hose FER Vacuum O pump AEN adaptor i Vacuum pump Completely tighten the flare nuts of the indoor and outdoor units connect the manifold valve charge Connect the charge hose connection to the vacuum pump Fully open the handle Lo of the manifold valve Operate the vacuum pump to evacuate After starting evacuation slightly loose the flare nut of the Lo valve on the gas pipe side and check the air is entering Operation noise of the vacuum pump changes and a compound meter indicates O stead of minutes After the evacuation is complete fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Make evacuation for 15 minutes or more and check the compound meter indicates 76cmHg Turn the stem of the Hi valve about 45 counterclockwise for 6 or 7seconds after the gas coming out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a 15 little higher than the atmosphere pr
8. al swing is invalid 8 4 11 lonizer Plasma dust collector function optional 31 The indoor unit is equipped with lonizer which is controlled by the CLEAN AIR button on the remote controller When the unit is turned on press the CLEAN AIR button to activate the function Press it again to stop the function During the time when lonizer being controlled by remote controller lonizer will be turned off automatically if indoor fan stops running due to malfunctions or anti cold wind When indoor fan restarts after malfunctions being eliminated and anti cold wind being released lonizer will be available again 32 9 Troubleshooting Safety Because of capacitors in PCB and relative circuit in outdoor unit even shut down the power supply Electricity power still are kept in capacitors do not forget to discharge the electricity power in capacitor A Electrolytic Capacitors HIGH VOLTAGE CAUTION Bulb 25 40W 33 9 1 Indoor Unit Error Display Display LED STATUS E1 EEPROM error E2 Zero Crossing Error ES Indoor fan speed out of control E4 Over current protection of the compressor occurs 4 times E5 Open or short circuit of Room temperature sensor 6 E Evaporator temperature sensor open or short circuit 9 2 Diagnosis and Solution 9 2 1 E1 EEPROM parameter error error diagnosis and solution Shut off the power supply and turn on it 5s later Replace indoor PCB The problem come
9. ant Ao refrigerant pipe hole 65 pipe hole 6 65 Dimension Model 7K 850 290 165 3 2 Outdoor Unit IHHHHHHHHHHH A Air inlet EEDE my ae ll a a l eae wW gt Dimension W D H W1 A B Model 7K 685 260 430 742 460 276 4 Refrigerant Cycle Diagram INDOOR UNIT OUTDOOR UNIT A CHECK VALVE Heating Model only al Ee VOD CAPILLARY TUBE LIQUID SIDE HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER REVERSING VALVE Heating Model Only COOLING HEATING 11 5 Wiring Diagram 5 1 Indoor Unit MS9V 07HRN1 QC2 WIRING DIAGRAM INDOOR UNIT pa Us ANTON GENERATOR mar BOARD PRODI soon ama om I BRORIK OR BLACK O o E E BLUE OR WHITE LT al DO a 1 6 0R GREEN m 2 p1 35 la21 321 12345 12345 12345 12343 11234 TVAPORATOR SENSOR OPTA iz omui I ALP i sA pi mem tomo Wiese tim LEE im ane indicates the element TAT TERMINAL is optional the actual shape shall SETT F INDOOR UNIT E be prevail TO OUTDOOR UNIT 12 5 2 Outdoor Unit MOK1 07HN1 QC2 TERMINAL s EN CEN e OVER LOAD PROTECTION CAPAC TIOR PUP Thi symbolindicates the ekmeiti Beek optional tle ac
10. ated circuit and breaker Improper wiring or installation may cause fore or electric shock m Use the correctly rated breaker of fuse There is risk of fire or electric shock B Donot modify or extend the power cable There is risk of fire or electric shock B Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury B Be caution when unpacking and installing the product 1 Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator For installation always contact the dealer or an Authorized service center There is risk of fire electric shock explosion or injury B Do not install the product on a defective installation stand It may cause injury accident or damage to the product B Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury B Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture m Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock B Do not place anything on the power cable There is risk of fire or electric shock B Do not plug or unplug the power s
11. d control High med low auto Follow me Two direction air vane The unit will decide the louver direction according Timer function to operation mode Sleep mode auto control The fan is turn to low speed cooling Self diag function Independent dehumidification The function is usually used in rainy days in Flexible wiring connection springtime or damp areas Air flow Direction control 1lonizer optional The louver can be set at the desired position or swing up and down automatically Auto mode Indoor golden fin optional The mode can be change by the room temperature Easy clean panel Temp Compensation Outdoor unit Power relay control The unit has 3 min delay between continuously ON OFF operations Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly Anti rust cabinet Made from electrolytic zinc steel sheet and anti rust coated components Valve protection cover It protects the valves and prevents water from dripping 3 Dimension 3 1 Indoor Unit 150mm or more to ceiling Installation plate Indoor unit outline 100 120mm or 120mm or more to wall S more to wall C Left rear side Aa rear side refriger
12. e center There is risk of fire or electric shock B Be caution that water could not enter the product There is risk of fire electric shock or product damage B Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock B Turn the main power off when cleaning or maintaining the product There is risk of electric shock B When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation m Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage gt CAUTION m Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product B install the drain hose to ensure that water is drained away properly 3 A bad connection may cause water leakage m Keep level even when installing the product To avoid vibration of water leakage B Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods lt may cause a problem for your neighbors m Use two or more people to lift and transport the product Avoid personal injury B Do not install the product where it will be exposed to sea wind salt spray directly lt may cause corrosion on the product Corrosion particular
13. e will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 8 4 7 6 The setting time is relative time 8 4 7 7 The tolerance of timer is 1 minute per hour 8 4 8 Sleep function mode 8 4 8 1 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode and turns off 8 4 8 2 Operation process in sleep mode is as follow After pressing ECONOMIC or SLEEP button on controller the machine will turn into sleep mode When cooling the setting temperature rises 1 be lower than 30 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed 8 4 8 3 Timer setting is available 30 8 4 8 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not stop until reaches the setting time in sleep mode 8 4 9 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including Swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit wi
14. essure 7 Remove the charge hose from the Lo pressure charge hose 8 Fully open the Hi and Lo packed valve 9 Securely tighten the cap of the packed valve Gas leak check Soap water method Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 6 5 Pumping down Re installation Indoor unit Y DAN Liquid side Close en y aN Outdoor unit A Produce 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve Connect the charge hose with the push pin to the gas service port 16 5 Air purging of the charge hose Open the low pressure valve on the charge set slightly to purge air from the charge hose 6 Set the 2 way valve to the close position 7 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 8 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up indicating 0
15. ged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 5 Mounted the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 21 7 Operation characteristics Mode Cooling operation Drying operation Temperature 10 C 32 C lt 21000Btu h models Room temperature 17 32 17 C 32 C 21000Btu h models cda 11 C 43 C lt 21000Btu h models 5 43 For the models with 18 C 43 C Outdoor temperature low temperature cooling system 21000Btu h models 21 52 For special tropical models 21 C 52 C For special tropical models CAUTION 1 If air conditioner is used outside of the above conditions certain safety protection features may come into operation and cause the unit to function abnormally 2 Room relative humidity less than 80 If the air conditioner operates in excess of this figure the surface of the air conditioner may attract condensation Please sets the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 Optimum performance will be achieved within this operating temperature 22 8 Electronic function 8 1 Abbreviation T1 Indoor ambient temperature T2 Pipe temperature of indoor heat exchanger Ts Set temperature 8 2 Display function 8 2 1 Icon e
16. ile restore 4 5A Iran 2 5 5A lo min 6 5A l5sec 7 5A for 7K model 8 3 3 Fan Speed is out of control When indoor fan speed is too low lower than 300RPM for 50 seconds the unit stops and LED displays failure 8 4 Operation Modes and Functions 8 4 1 Fan only mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is display 3 Indoor fan can be set to high med low auto 4 The louver operates the same as in cooling mode 5 Auto fan T1 C 29 28 25 8 4 2 Cooling Mode 24 8 4 2 1 Compressor and outdoor fan control The action of the compressor and the outdoor fan are submitted to the following rule Open the compressor and outdoor fan T1 TS21 C open the compressor and outdoor fan T1 TS 0 C stop the compressor and outdoor fan Stop the compressor and outdoor fan 8 4 2 2 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected in high medium low and auto speed Auto fan in cooling mode acts as follow TI Ts 8 4 2 3 Evaporator low temperature T2 protection T2 f The compressor and outdoor ian open TE6 TES The compressor and outdoor fan stop after 5min When T2 lt TE5 continuous for 5 min the compressor and outdoor fan will stop and restart until T2 gt TE6 While TE5 AC TE6 10 C for 7K model 8 4 3 Heating Mode 8 4 3 1 Comp
17. ll run in cooling mode for 30 minutes and turn to auto mode as 24 setting temp If A C is off before power off and A C is required to start up now the compressor will have 1 minutes delay when power on Other conditions the compressor will have 3 minutes delay when restarts 8 4 10 Vertical louver control function optional Total four type operations for vertical louver control function original orientation orientation vane adjustment and horizontal swing 8 4 9 1 Original orientation means when power on the louver will turn to the datum mark This action has the highest priority The other action of vertical louver can t act until the original orientation action stopped 8 4 9 2 Orientation means after the original orientation action the louver turn the middle position of upper limit position and lower limit position 8 4 9 3 Vane adjustment pressing the control button on the remote controller to make the vertical louver turn left and right Each pressing the louver will turn 6 C If pressing the button during the original orientation the louver will only turn 6 C after the original orientation action stopped regardless the pressing time No action when the unit is stopped 8 4 9 4 Horizontal swing means the louver can auto swing horizontally in the allowable range if pressing the button on the remote controller Pressing once the louver starts movement the second pressing is to stop the moving If indoor fan stopped the horizont
18. ly on the condenser and evaporator fins could cause product malfunction or inefficient operation gt Operational B Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health B Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property m Do not block the inlet or outlet of air flow It may cause product failure m Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product B Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury B Do not step on or put anything on the product outdoor units There is risk of personal injury and failure of product B Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage B Do not insert hands or other object through air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury B Do not drink the water drained from the product It is not sanitary could cause serious health issues B Use a firm stool or ladde
19. ny of the following items is satisfied 1 Both A and B are satisfied A The compressor keeps running for 40 minutes B The evaporator coil temp T2 Indoor room temp T1 meets the below table High speed lt THperrost Medium speed lt T Mperrost No need to compare the T2 and T1 THperrost 14C TMperrosr 1 5C TLperrost 1 6 C for 7k model 2 After the last defrosting the time that the outdoor fan is off but the compressor is on in high T2 protection cumulates up to 90 minutes e Condition of ending defrosting If any one of the following items is satisfied the defrosting will terminate and the machine will turn to normal heating mode 1 The defrosting time is reached to the setting value 2 The compressor current reaches or overs lberrosr for 7 seconds IberrosT 3 0A for 7k model e Defrosting action 27 i Setting defrosting time 1 45 j M 255 Compressor 4 way valve Outdoor fan Indoor fan About the setting defrosting time 1 Condition 1 of defrosting If case B happens before case A and lasts till case A happens the setting defrosting time is 10 minutes Otherwise the defrosting time is 7 5 minutes 2 Condition 2 of defrosting The defrosting time is 10 minutes 3 No matter what condition of defrosting is if the defrosting time keeps 7 5 minutes for 3 times it will be 10 minutes in the 4 defrosting 8 4 3 5 High evaporator coil temp T2 protection
20. oor unit Yn Z N 1 er Liquid side TEMA Outdoor unit fo am N Gas side Procedure 1 Confirm that both the 2 way and 3 way valves are set to the open position 18 2 Connect the charge set to the 3 way valve s service port Leave the valve on the charge set closed Connect the charge hose with the push pin to the service port 3 Open the valves Low side on the charge set and discharge the refrigerant until the gauge indicates 0 05 to 0 1Mpa If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1Mpa discharge the refrigerant until the gauge indicates 0 05 to 0 1 Mpa In this case it will not be necessary to apply an evacuation Discharge the refrigeration gradually if it is discharged too suddenly the refrigeration oil will be discharged 6 8 Evacuation Indoor unit Y Liquid side Outdoor unit sadi 3 as ville Jj Open EN T HA Gas side Ni E SEDA ae eA 4 wn aa OPEN UAE i 3 way valve en f KEN Vacuum pump 1 Te A Procedure 1 Connect the vacuum pump to the charge set s centre hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 0 1 Mpa 76 cmHg vacuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move
21. r when cleaning or maintaining the product Be careful and avoid personal injury m Replace the all batteries in the remote control with new ones of the same type Do not mix old and mew batteries or different types of batteries There is risk of fire or explosion B Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode B Ifthe liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards 2 Function Model Names of Indoor Outdoor Unit Cooling only Series Capacity Indoor units Outdoor units On Off 7k MS9V 07HRN1 QC2 MOK1 07HN1 QC2 Indoor unit Operation ON OF by remote controller Auto Restart Function When the power supply is interrupted and then restore the air conditioners automatically restore the previous function setting Sensing by room temperature Room temperature sensor Pipe temperature sensor Room temperature control Maintain the room temperature in accordance with the setting temperature Starting temperature control Indoor fan is delayed for 5 sec at the starting Time Delay Safety control Restarting is for approx 3 minutes Self cleaning Indoor fan spee
22. ressor running rules For 7K model the compressor will follow the below rules once the compressor starts up When indoor room temp T1 is higher than Tj the compressor and outdoor fan will shut off When T1 is 25 lower than Tk the compressor and outdoor fan will start up Tj Tk On Tj Ts Tc Tk Ts Tc 1 Tc 1 for 7k model 8 4 3 2 Outdoor fan running rules The outdoor units have single fan speed The outdoor fan will run following the compressor except when AC is in evaporator high temp protection in heating mode condenser high temp protection in cooling mode defrosting mode and the current protection 8 4 3 3 Indoor fan running rules For 7K model when the compressor is on the indoor fan can be set to high med low auto And the anti cold wind function has the priority Anti cold wind function When evaporator coil temp T2 is getting higher T2 gt TE2 the indoor fan will run at setting speed TE1 T2 TE2 the indoor fan will run at low speed When T2 is getting lower TE4 lt T2 lt TE3 the indoor fan will run at low speed T2 lt TE4 the indoor fan will shut off T2 Setting TE2 I TE1 While TE1 28 TE2 32 TE3 30 TE4 26 for 7k model Auto fan action 26 T1 TS low 2 0 0 0 medium When T1 Ts gt 2 the indoor fan will run at low speed When T1 TssO the indoor fan will run at medium speed 8 4 3 4 Defrosting mode e Condition of defrosting AC will enter defrosting mode if a
23. s chargind itirn drente RR a een ue ae ae ea 20 7s Operation characteristics 000 i 22 8 Electronic f nctlon reen cee al 23 SA ADDPSVIAUON a aen vereert aa 23 8 2 Display f nction 2 edet e di ee eR E Pe ioc rr prd nen ERR eaten 23 9 3 MalDiProtectlonic sii ac are ANNE 24 8 4 Operation Modes and Functions nnen ennennereere eeen ennennervere neen nennen nnne nenne nennen nnn 24 9 Troubl shooting sireisas aieea erea dednennd 33 9 1 Indoor Unit Error Displayen a ra mm mm Ta ETEA 34 9 2 Diagnosis and Solution ot or eniti tra paste enara P Ere pb a a aa aeii 34 1 Precaution 1 1 Safety Precaution B To prevent injury to the user or other people and property damage the following instructions must be followed W Incorrect operation due to ignoring instruction will cause harm or damage B Before service unit be sure to read this service manual at first 1 2 Warning gt Installation B Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock m For electrical work contact the dealer seller a qualified electrician or an Authorized service center Do not disassemble or repair the product there is risk of fire or electric shock M Always ground the product There is risk of fire or electric shock B Install the panel and the cover of control box securely There is risk of fire of electric shock m Always install a dedic
24. s out again Correct the connection N Is the EEPROM chip plugged in indoor PCB well Replace the main PCB of indoor unit 34 9 2 2E2 Zero Crossing Error Zero crossing error Unplug the power cord and plug it after 2 seconds The problem remains YES Replace the main PCB 35 9 2 3 E3 indoor fan speed out of control diagnosis Shut off the power supply and turn on it 5s later The unit does not work normally Turn off the unit rotate the cross fan Disassemble the connection between fan Does it rotate freely and motor check if the bearing is normal If not change the bearing If yes follow the below step Is the indoor fan motor connector and connection good Check the voltage between the red and black wires of motor power input Is it in Replace the fan motor range of AC90 160V Replace the indoor PCB 36 9 2 4 E4 Over current protection of the compressor occurs 4 times urrent protection Check if the voltage of power gt _ The power supply is 3 Repair the power supply is too low problematic a Supply No Check if the operation condition No correct the operation is oe especially the outdoor gt condition unit pe Disconnect with the power and replace the main PCB Turn on the units and check ifthe Y Checkif the compressor E Replace the problem remains is normal s comprssor
25. tuals bape sta llprevail A M EN 13 6 Installation details 6 1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque mm inch N cm N cm 1500 1600 06 35 1 4 153kgf cm 163kgf cm 2500 2600 9 52 3 8 255kgf cm 265kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm gt 3 and lt 6 gt 6 and lt 10 6 3 Pipe length and the elevation Pipesize size Standard Max Additional Capacity length Elevation refrigerant Btu h Liquid m B m g m Indoor unit Indoor unit Outdoor unit Caution Capacity test is based on standard length and maximum allowance length is based on reliability Oil trap should be installed per 5 7 meters 6 4 Air purging with vacuum pump Air and moisture in the refrigerant system have undesirable effects as below Pressure in the system rises Operating current rises Cooling efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigerant system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system Air purging with vacuum pump
26. upply plug during operation There is risk of fire or electric shock B Do not touch operation the product with wet hands There is risk of fire or electric shock B Do not place a heater or other appliance near the power cable There is risk of fire and electric shock B Do not allow water to run into electric parts It may cause fire failure of the product or electric shock B Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product B Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire M If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire m Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock B Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure B When the product is soaked flooded or submerged contact an Authorized servic
27. xplanation on indoor display board dew 5 al cb Temperature OPERATION indication lamp This lamp illuminates when the air conditioner is in operation AUTO indication lamp Lights up during the Auto operation Timer indicator Lights up during Timer operation lon indication lamp optional function Lights up when Clean Air feature is activated and lonizer can generate abundant anions to fill the room with refreshing and natural air bdije ogage DEFROST indication lamp For cooling amp heating models only Lights up when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating operation O TURBO indication lamp Lights up only when select TURBO function on cooling operation or on Auto cooling operation 8 2 2 LED display control function Pressing LED display button on remote controller will turn off all displays on indoor unit while pressing once again all displays will resume 23 8 3 Main Protection 8 3 1 Time Delay at restart for compressor 8 3 2 Current protection The following chart shows the protection if the current was too high Compressor and outdoor fan turn off lager after 5 seconds Compressor and outdoor fan turn off after 5 minutes later 5Min Indoor fan turn to low speed Fan Restore Indoor fan On Compressor On Outdoor fan On Wh
Download Pdf Manuals
Related Search